Greenbay, WisconsinSeptember 1961

Insufficient Data

Summary

On September 18, 1961, in the Greenway, Wisconsin area, a radar target was reported. It first showed up like a normal target at a high altitude and a fairly low speed. It appeared at about 106 degrees and was later lost as it moved on an erratic course that included hovering. The Air Force said the low speed, high altitude, and erratic path pointed to a high flying weather balloon. The card lists the cause as a balloon.

Reported location

Greenbay, Wisconsin

Date of incident

September 1961

State / country

WI / US

Page count

4 scanned pages

USAF evaluation

unknown

Microfilm

T1206, Roll 43

Original case file scans

Original case file · scanned by NARAPage 1 of 4

View transcribed text

: : PROJECT 10073 RECORD CARD
I. DATE 2 LOCATION 12. CONCLUSIONS
i 3 7 4 5 : : 0 Was Balloon
18 Sep 61 Greenvay, Wisconsin 5 Probably Balloon
| | 3 DATE-TIME GROUP 4 TYPE OF OBSERVATION HT TTI en
A | A 0 Was Aircraft
: Local ll 2.Ground- Visual 0 Ground-Rodar O Probably Aireroft
= JURY
1 A XS A =4 ia DO AirVisvel O Air-Intercept Radar D Possibly Aircraft
; S. PHOTOS SOURCE O Was Astronomical
: J O Yes : O Probably Astronomical
a £0 Ne id lian O Possibly Astronomical
: 7. LENGTH OF OBSERVATION 6. NUMBER OF OBJECTS | 9. COURSE DIN acini
| : 0 Insufficient Data for Evaluation
3 A : bs : 0 Unknown
1S min Stationary
i 10. BRIEF SUMMARY OF SIGHTING = ~~ = 7 oo Wh COMMENTS 015+ vosponsible for this sighting
1 es ionary, was prooably valloon which was released £1
: : Gre=nbay at 1800Z. Obj: was probably not gt |
30a 3) Vin Va 8 | Tale E 6 Bast « SARE FRTIGEEI IE BL ap a ‘ se ayer gy cola
to be at this altifnis dus fo lack of rer] |
erence. Direction of obit and correlation
: of wind direction tends to substantiate
] this onJjt being Greenbay balloon. :
1 ATIC FORM 329 (REV 26 SEP 52)
1
4 i
kK oC ab tea ans “a
| 4 z

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Source: National Archives Catalog · NAID 28994649